<p>Specifies whether or not a failure during execution of the post-deactivation script is fatal to the migration.</p>
<p>If it is fatal, the migratable target will <i>not</i> be automatically migrated until an administrator
manually migrates it to a server, thus reactivating it.</p>
<p><b>Note:</b> Enabling this value will result in weakening the exactly-once guarantee. It is provided to prevent
more dangerous data corruption if the post-deactivation script fails and is not idempotent.</p>
(Interface=weblogic.management.configuration.MigratableTargetMBean Attribute=isPostScriptFailureFatal)